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What is the standard heat of reaction for the following reaction?
[tex]Zn(s) + Cu^{+2}(aq) --\ \textgreater \ Zn^{+2}(aq) + Cu(s) (\Delta Hf_o for Cu^{+2} = +64.4 kJ/mol; \Delta Hf_o for Zn^{+2} =152.4 kJ/mol)[/tex]
a. 216.8 kJ released per mole
b. 88.0 kJ released per mole
c. 88.0 kJ absorbed per mole
d. 216.8 kJ absorbed per mole

Respuesta :

Answer:

The correct answer to the question is

The standard heat of reaction for the reaction is

a. 216.8 kJ released per mole

Explanation:

The heat of reaction is given by [Heat of formation of products] - [Heat of formation of reactants]

In the question we have, heat of formation of the products Zn+2 (aq) = -152.4 kJ/mole and the heat of formation of the reactants = 64.4 kJ/mole

Therefore, the heat of formation of the reaction = (-152-64.4) kJ/mole or

-216.8 kJ/mole released

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